Replace Box Gutter With Overhang

Cut out the section of the roofing.

Replace box gutter with overhang.

If your home center or hardware store doesn t sell pre bent flashing ask an aluminum siding contractor or local sheet metal fabricator to bend some for you. Use a 10mm spacer this creates a gap behind the gutter so water can overflow freely. Hang the new gutter next to the old one and then slide the patch under the seam. Section from the box miter with a tin snips and you ve got yourself a custom slip joint.

Box gutters are valley like troughs at the edges of roofs which are concealed in appearance and don t draw attention from the beauty of the house. A vertical pipe where water goes through from gutters and roof catchments to the drainage. You can make your own from a box miter and box miters are available in every color gutters are made. Clamp a 1 by backing board in place and screw the new rafter to it.

Cut a replacement piece from pressure treated lumber. Subscribe to this old house. Hang the gutter lower the top of the bead must be 20mm below the top of the fascia to allow water to overflow safely over the bead. Built in gutters also called box or hidden gutters are actually a type of rain gutter and can replace the latter especially when the conspicuous appearance of the rain gutter is the main issue.

When you buy your new gutter section make sure you order either an inside or outside box miter at the same time. The vba has provided several options for plumbers to make an installation compliant. The cleat helps support the new overhang. This effectively states that all box gutters must allow for 30mm of freeboard which is from the overflow point eg.

The foundation of most box gutters is wood that is then covered with thin sheet metal such as tin copper lead stainless steel. I fall or slope box gutters to be installed with a minimum uniform fall of 1 in 200 towards the outlet. Ask this old house general contractor tom silva installs an alternative to a gutter when a traditional one does not work. Box like parallel and rectangular rain gutter usually concealed behind a parapet.

A box gutter is actually built into the bottom of the roof or into the roof overhang. Attaches the gutter to the downspout. With gutter replacement you can prevent water from running behind your gutters by installing a metal gutter apron flashing under the shingles and over the back edge of the gutter. Remove an area of the roof shingles from the edge of the roof to the upper line of the overhang using a 16 inch nail bar and hammer to pull the roofing nails.

A box gutter does not hang onto the edge of a roof or on the edge or side of a house as many modern pre formed metal gutters do. Rainhead overflow or specific box gutter overflow must be at least 30mm below the height of the back of the box gutter.